Location History:
- Clamart, FR (1985 - 1990)
- Marcoussis, FR (1992)
Company Filing History:
Years Active: 1985-1992
Title: Michel Lebourg: Innovator in Digital Signal Processing
Introduction
Michel Lebourg is a notable inventor based in Clamart, France. He has made significant contributions to the field of digital signal processing, holding a total of 5 patents. His work focuses on enhancing communication technologies through innovative methods and devices.
Latest Patents
One of Michel's latest patents is a coherent demodulation method for a digitally modulated signal. This method ensures coherent demodulation by digitally processing a continuous-phase modulated signal, such as the GMSK type. The received signal is transposed in the baseband, converted into a digital signal, and transferred to a signal processor. Each transmitted data packet includes a known preamble sequence of N bits, which allows for approximate estimation of frame-synchronization and bit-synchronization, as well as the initial phase and residual frequency offset. The estimation is progressively refined using two interleaved digital loops: a slow loop for detecting bit-synchronization and a fast loop for making intermediate decisions over additional blocks of bits.
Another significant patent is a variable attenuation device intended to be inserted between a transmitter circuit and a load circuit. This device consists of at least one parallel attenuation branch made up of a variable resistance component, such as a p-i-n diode, and a bias circuit that varies the resistance based on an attenuation control variable. The parallel attenuation branch includes a limiting component connected in series with the variable resistance component, ensuring the matching of the internal impedance of the transmitter circuit.
Career Highlights
Michel Lebourg is currently associated with U.S. Philips Corporation, where he continues to innovate in the field of digital signal processing. His work has had a profound impact on communication technologies, making them more efficient and reliable.
Collaborations
Throughout his career, Michel has collaborated with esteemed colleagues, including Gilbert Petitjean and Jean-Pierre H Van Uffelen. These collaborations have further enriched his contributions to the field.
Conclusion
Michel Lebourg is a distinguished inventor whose work in digital signal processing has led to significant advancements in communication technologies. His innovative patents reflect his commitment to enhancing the efficiency and reliability of digital communications.